Castles around Nettelsee offer a glimpse into the region's rich history, situated amidst the natural landscapes of Schleswig-Holstein. While Nettelsee itself is a small municipality, the surrounding area features several notable historical sites and estates. These locations provide opportunities to explore historical architecture and enjoy the local environment. The region is characterized by its gentle hills and proximity to lakes, offering a blend of cultural and outdoor experiences.
Last updated: June 26, 2026
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Gut Ascheberg is located on the west bank of the Großer Plöner See in the district of Plön in eastern Schleswig-Holstein. The former aristocratic estate is still farmed today. The French garden, preserved only in its basic features, was one of the most significant Baroque gardens in the former Duchy of Holstein. The manor house, known as Schloss Ascheberg, now serves as a youth leisure and recreation center. Source Wikipedia
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When the antique shop is open, you can also drive into the Bothkamp estate—we do it on Saturdays from 11:00 a.m. to 5:00 p.m. 😉. The White Manor House, however, is private.
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Wonderful location on the lake. Lots of old forest and magnificent avenues.
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Beautiful, leisurely route through nature
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Still great to ride, definitely the best flow coming from the south!
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Today only the round foundation wall of the Bothkamp historical observatory can be seen. Built in 1869 by landowner Friedrich Gustav von Bülow it was operated until 1914.
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In August better bring a machete or long clothes;-) the stinging nettles are difficult to penetrate...easily passable with tires from approx. 32-35 mm and a little profile.
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Unfortunately, Gut Bothkamp is privately owned and not open to the public. The white manor house can be seen from the other side of the Bothkamper See. https://www.herrenhaus-bothkamp.de/gut-bothkamp/
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Beyond traditional castles, the region around Nettelsee offers a variety of historical sites. For instance, you can visit the Bothkamp Observatory Ruins, which was once home to one of Germany's largest telescopes. There are also manor houses like Ascheberg Castle, a former noble estate still used for agriculture, and the grand historical estate of Wahlstorf Manor in the broader area.
Yes, Bothkamp Observatory Ruins is a unique historical site, having operated as a private observatory from 1870 to 1914 with a significant telescope for its time. While not a traditional castle, Belau Castle, a neo-Gothic country house, was once a popular 'castle restaurant' in the 1920s, offering a glimpse into a different kind of historical use.
Access varies by site. For example, Belau Castle is a private neo-Gothic country house and is not open to the public, though you can observe its exterior. Ascheberg Castle, a former noble estate, is leased to a Christian youth organization as a holiday home, so public access may be limited to its grounds. The Bothkamp Observatory Ruins are accessible as a historical site.
The Bothkamp Observatory Ruins mark the location of a private observatory that operated from 1870 to 1914. It famously housed one of Germany's largest telescopes at the time, with an aperture of 29.3 cm and a focal length of 4.9 m. The original building was demolished in 1930, and its facilities were moved to a museum in Kiel.
Ascheberg Castle is a former noble estate that continues to be used for agriculture. The mansion itself is leased as a holiday home for a Christian youth organization. You can observe the modest mansion, which is flanked by two old, remaining covered bills, one of which has been restored. It's considered family-friendly and offers a viewpoint.
Yes, Ascheberg Castle is listed as family-friendly. While not all sites may have specific children's activities, exploring the grounds of these historical locations and the surrounding nature can be an enjoyable experience for families.
The region around Nettelsee offers various outdoor activities. You can find running trails, such as the 'Sieversdorfer Bridge loop from Postfeld' or 'Viehteich Nature Trail – Bothkamper See lakeside trails loop from Warnau', which you can explore further in the Running Trails around Nettelsee guide. For mountain biking, routes like 'Fishing on the Postsee – Gut Wahlstorf Manor loop from Warnau' are available in the MTB Trails around Nettelsee guide. There are also easy hikes, including 'Small Oasis in the Cornfield loop from Nettelsee', detailed in the Easy hikes around Nettelsee guide.
Yes, there are several hiking opportunities. The Bothkamp Castle Trail is a narrow path that leads around the castle grounds, offering a technically fun experience with uphill and downhill sections over tree roots. Additionally, you can find various easy hikes around Nettelsee, such as the 'Small Oasis in the Cornfield loop from Nettelsee', which are detailed in the Easy hikes around Nettelsee guide.
Visitors appreciate the blend of historical exploration and natural beauty. The Bothkamp Castle Trail is particularly enjoyed for its technically fun mountain biking sections around the castle grounds. The historical sites, including castles, manors, and observatory ruins, offer a unique past to explore, often set amidst the gentle hills and proximity to lakes of Schleswig-Holstein.
Yes, Ascheberg Castle is categorized as having a viewpoint. The region's natural landscape, with its gentle hills and lakes, often provides scenic vistas, especially when exploring trails around historical estates.
Belau Castle is a neo-Gothic country house built at the end of the 19th century on the steep eastern shore of Lake Belauer. It was once a popular 'castle restaurant' in the 1920s. While it has been newly renovated, it is unfortunately not open to the public, so visitors can only view its impressive exterior and metal gate.


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